com.conversantmedia.mapreduce.tool.annotation

Annotation Type NamedOutput

@Inherited
 @Target(value=FIELD)
 @Retention(value=RUNTIME)
 @Documented
public @interface NamedOutput

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element and Description
boolean	countersEnabled MultipleOutputs.setCountersEnabled(boolean)
Class<? extends org.apache.hadoop.mapreduce.OutputFormat>	format Output format class.
String[]	name Sets the name.
KeyValue	type Key/value type to output.
String[]	value Sets the name when you don't need any other options.

Element Detail

value

public abstract String[] value

Sets the name when you don't need any other options. Enables writing @NamedOutput("myMulitOutName") Supports OGNL expressions by enclosing expression in braces, prefixed by a '$'. Example: @NamedOutput("${context.property}")

Returns:

a name for this output.

Default:

"default"

name

public abstract String[] name

Sets the name. Synonymous with value - designed primarily for use when you're setting multiple options and don't want to use 'value=""' Supports OGNL expressions by enclosing expression in braces, prefixed by a '$'.

Returns:

a name for this output

Default:

"default"

type

public abstract KeyValue type

Key/value type to output.

Returns:

the key/value type for this output

Default:

@com.conversantmedia.mapreduce.tool.annotation.KeyValue

format

public abstract Class<? extends org.apache.hadoop.mapreduce.OutputFormat> format

Output format class.

Returns:

the output format to use

Default:

org.apache.hadoop.mapreduce.lib.output.TextOutputFormat.class

countersEnabled

public abstract boolean countersEnabled

MultipleOutputs.setCountersEnabled(boolean)

Returns:

determines if counters should be enabled

Default:

false